Automatic window-lock



W. T. FINNEGAN.

AUTOMATIC WINDOW LOCK.

- APPLICATION min Auea. ma. 1,314,794.

Patented Sept. 2, 1919.

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W. T. FINNEGAN.

AUTOMA'UC WINDOW LOCK. APPLICATION man Aue. 8. lm a.

1 3 1 4, 7 94 Patented Sept. 2, 1919.

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A iTEi) sTATns PATENT onnion.

WILLrAivI T, FINNEGAMOFDETROIT, ivrrcniem.

AUTOMATIC WINDOW-Loox.

To all whom t may concern y Be it known that I, VILLIAM T. FINNE- `GAN,` afcitizen of the United States, residing at Detroit, vin the county ofVWayne` and State of Michigan, havev invented certa-in new and useful Improvements in Automatic Window-Locksyand I do declare the folllowing to.be a full clear, and exact description of the invention, such as will enable others skilled in the art to which appertains to make and use the same.` 1

Thisl invention relates to window sash fasteners, and it relates more particularly -l to an yimproved automatic window sash lock.

' position.

tively,

f: Another object is to provide a device 'of thischaracter in which any attempt to `raise the'lower sash orl to Alower the upper sash,

while locked, serves to lock both sashes more i securely.

by an automatic actuator that is common to both, and are released by a single manipulaandthese pintles are preferably headed and W tive element or lever. `Another object is to provide a sash lock of j this character that is strong,durable, com` 11 pact, convenient and easily attachable to any this character simple parts,

window of ordinaryconstruction, and

Another object is to provide a device of 'which consistsfof few and and therefore may be manufactured `at a comparatively low cost.

Other objects and advantages may become apparent to persons who read the following details of descriptionin connection with the accompanying drawings, in which:

`Figure lis a side elevation of my improved window sash lock secured to the up, per end of a lower sash and frictionally en-` y 'gaging the inner side of the upper sash.

. Fig. 2 is a horizontal sectional view along the une we of Fig. a

3-isfay vertical view along the line the working parts being shownA in elevation and in the operativeA "position y -thatthe working yparts are ininoperative Specification of Letters Patent.

y One of the objects of the invention is .to lprovide a device of this character which automatically locks both sashes in the closed w position or open positionfor `in partly k open`7 yAnother object is to provide a device ofi this character in which the elements that.v ,lock the upper and lowersashes, respec-1I are interdependent and are operated` 1 ment of the other.

Fig. :L1 is, aview similar to Fig. 3, except` y Patented sept. 2.1919. Application led'August 8y 1918; Serial No. 248,927.

' `Fig.` 5 is a top plan view, the parts being shown in the operative position, and "1 1I* ig. 6 is a transverse vertical sectional view along the line 6--6 of Fig. 3.

Referring to these1 drawings, in detail, in

which similar reference characters corre-` `for the reception vof screws 13, whereby it may be secured to the top of the lower sash as indicated in Figs. 1, 2, 5 and 6. Al-

u though I show this base or casing with a 'flange 14 which extends in the same horizontal plane with the flange `11, and constitutes a bottom ofthe base or casing 10, l `thisflange 14 may be dispensed With for the sake of economy. The casing 110 isjhere shown `with slotted end walls 15 and 16, but these end walls may also be dispensed with for the sake of economy in the manufacture of the device. The essential features of the casing are thevertical walls 17 and 18, the ange 11 and a horizontal top or capplate 19.

. Between thewallsly and 18y are mounted."-`

three levers 20, 21 and 22, these levers being pivotally'mounted on pintles 23, 24 and25, respectively, which extend through the side walls `17 and 18, and are supportedthereby;

screw-threaded so as to support the walls in proper relation with one another, and are A sash-engaging element 26 is secured to H the louter end of the lever 2O by means of a securing member 27 ,and these elements 26 and v27 may be properly considered as parts of thelever 20. This lever is'longitudinally slotted at its middle part asindicated at 28,

`and the lever 21 is provided with. a stud 29 which extends through the slot 28 so as to operatively connect the levers 20 and 21 in such relation that the swinging of either of these leversv effects a corresponding move- These levers are normally held in the operative position shown nin Figs. 1, 2, 3 and 5 by means of a spring 30 which is preferably formed of wire and is coiled around thejpintle 23, and is formed:k

with arms 31 and 32, the arm 31 being inthe f form of -a loop which engages with the top part vof leven-201 and presses. downward thereon, ,the arm 32 being engaged'withthe l cap-plate l19.

depressed, but which releases its engagement window locks inV dierent sizes correspond sashes-,xso th'atwhen they are properly se-k' v frict-ionarl lelement 26 engages with the upwith this element of Y the window frame when the levers 20 and 21 are `swung upward.` l

` The lever 22 is provided with a lateral element or wing 311 which rests against the lower sideror edge of the lever'20, and the lever 22 is also formed with a wing or handle A y whereby this` lever may be swung on its `*pi-'vot so 'aste raisethe lever- 20fby means of the wing 34, as shown in Fig. 4. Y n

' It. 'scontemplated `Jomanu-facture these ing to the standard thicknesses of window cured: 'on the respective lower sashes, the

per sash while the dog 38 engages with the l A fthe lower sash in place and constitutesthe '-mirimum cost. y A t .f y

Inrapplying thedevice toca window, vthe inner lguide therefor. 1

, The several4 `partsA of theadevice,` with the I exception ofthe spring,xpintles, rivetsand vrubber elementi 26, are preferably formed of i sheet `metal."lolanks or stampings, thereby enmanufac'tured v*at the-` ablling the device tobe "lever 22 `isd'epressed so as toraise andrev strict the free ends of the levers 20 and 21;

Ithe :device isn'ow placed on lthe lower window sash'adjacent to the window frame, so

th-atthe dog 33 is 'between the window stops )or strips.;l `the lever 22 is now released,so

that. the 'spring 30 cooperatesy with the stud 40 28 for depressing the levers 20 and 21, thus causing Vtheselements'26 and 33y to engage,`

` respectivelyl with the upper sash and inner sclf-adjustedposition, the levers 20 and 21v have perfect coperation in preventing the. raising of the'lower sash and the lowering lsashlstopor strip,and 'thescrews 13 are now forced into the lower sash, through the openings fof. the flange 11. It will be seen, f therefore, that this device is self-adjusting as regards its position transversely of the-y lower' sash and when-it is secured in this off the upper sash. In this connection, it

will be seen that any attempt to lower the- "upper s ashl effects a tighter engagement ofv the frictional elements 26- therewith; andl that anyattempt to raise the lower sash ef- `fects Ia vtighter engagement of the dog f withuthe window frame. Moreoven it will `be seen "that any movement of the upper lframe which eifects an additional movement of the lever2()` also effects anadditional'mova ment of vthele'ver 21' so as' tolock the lowerl y fsashmorefsecurely, and that any movementy ofthelow'ersasheffects an additional down- `ward movement of the lever 21 and also fthe lfirst and second said levers Although I have described uns embodilowers the lever 20 so as tofincrease the security ofthe upper sash.

mentof@ -myinvention very specifically, it is f t not intended to limit this invention to these exact details of construction and arrangeynation with a window framel and sashes, of "a basey secured tothe top,e of the lower win#` dow-sash and extendingisubstantially from theinner side to the outer side of said sash,

,n aleverhaving lone end pivotally .mounted on the base,vsaid lever extending outward sub- Y stantially from one side'to ltheopposite side]` of the base and 'having its other end norimally extending to the innersurfaceof the t .y upper sash ata level "considerablyA above; the -element of the .window` frame whichholds pivotal connectionof the irstsaid. end, elas- 1. In a window-sash fastener, the'combr" tic meansV to press said other end .downward and yieldingly hold it in `engagement with the upper window-sash, retaining means :supported by said 'base and movalolev'intok and out of engagement with the window frame,andzmeans common to said lever ander the said retaining means andbeing! operable per sash and window frame.

In a window sash fastener, the combi?" .95 .sito release said lever andf said retaining `-means fromthei-r engagement with saidupyieldinglyr hold it in engagementv withfthe` upper Window-sash, a lever `pivotajlly supported by said base and being longitudinally disposed in a plane' parallelwith the'le'ngth of the firstsaid lever and beingV movable into and out of engagement with a sash-stopv of* the window-frame, u and `means common to andy 'being operablev to `,release said levers from; their engagement with said uppersash and win-y dow-frame.

3, Inl a windowesash fastener, the .combination with a window frame and'sashes, of a base secured' tof the top of the lower windowsash, a lever having one end pivotally mounted on the base extending outw'ardly" thereacross and' ,havingits `other end nor- "mally 'extending tothe innerlsurface 'of the upper sash at a level considerably'above the pivotal connection of' the first said end, a lever having one en'd' pivotally'mounted' on said base adjacent to the outer sideof 'the lower sash and having its inner end on a considerably higher level than its outer end, means operatively connecting the middle parts of these levers so that a movement of one lever will be transmitted to the other lever, means to yieldingly hold the first and second said levers in engagement respectively with the upper sash and window frame, and means to release these levers Jfrom such engagement.

4:. In a window sash fastener, the combination with a window frame and sashes, of a base secured to the top of the lower window-sash, a lever having one end pivotally mounted on the base and extending outwardly thereacross and having its other end normally extending to the inner surface of the upper sash at a level considerably above the pivotal connection of the first said end, a lever having one end' pivotally mounted on Copies of this patent may be obtained for ve cents each, by addressing the said hase adjacent to the outer side of the lower sash and having its inner end on a considerably higher level than its outer end, means operatively connecting the middle parts of these levers so that a movement of one lever will be transmitted to the other lever, means to yieldingly hold the rst and second said levers in engagement respectively with the upper sash and windowframe, and an actuating lever pvotally mounted below the middle portions of the first and second said levers and having one end extended laterally under the rst said lever. v

In testimony whereof I have hereunto set my hand.

WILLIAM T. FINNEGAN.

Witnesses:

HERALD MORRISON, J oHN P. HALLINAN.

"Commissioner of Patents,

Washington, D. 0. 

